US2838368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of ammonium nitrate solutions
Assignee: Individual
•
Filing: 1948-06-28
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Granted: 1958-06-10
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Expires: 1968-06-28
Abstract
No abstract record available.
Inventors
- 👤 Boyer Thomas William
- 👤 Machutchin John George
- 👤 Yaffe Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:39
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A METHOD OF TREATING AQUEOUS SOLUTIONS CONTAINING AMMONIUM NITRATE AND FISSION PRODUCTS WHICH COMPRISES SLOWLY ADDING THE SOLUTION TO AN EXCESS OF HOT ACETIC ANHYDRIDE WITHOUT EXTERNAL HEATING, HEATING THE MIXTURE TO COMPLETE TRANSFORMATION OF THE AMMONIUM NITRATE, DISTILLING THE REMAINING MIXTURE TO NEAR DRYNESS AND ADDING NITROGEN DIOXIDE TO THE MIXTURE CONTAINING SMALL VOLUME OF ACETIC ANHYDRIDE AND ACETIC ACID WHILE DISTILLING THE MIXTURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |